1/*
2 * sound/soc/codecs/wm8782.c
3 * simple, strap-pin configured 24bit 2ch ADC
4 *
5 * Copyright: 2011 Raumfeld GmbH
6 * Author: Johannes Stezenbach <js@sig21.net>
7 *
8 * based on ad73311.c
9 * Copyright:	Analog Device Inc.
10 * Author:	Cliff Cai <cliff.cai@analog.com>
11 *
12 * This program is free software; you can redistribute  it and/or modify it
13 * under  the terms of  the GNU General  Public License as published by the
14 * Free Software Foundation;  either version 2 of the  License, or (at your
15 * option) any later version.
16 */
17
18#include <linux/init.h>
19#include <linux/slab.h>
20#include <linux/module.h>
21#include <linux/kernel.h>
22#include <linux/device.h>
23#include <sound/core.h>
24#include <sound/pcm.h>
25#include <sound/ac97_codec.h>
26#include <sound/initval.h>
27#include <sound/soc.h>
28
29static const struct snd_soc_dapm_widget wm8782_dapm_widgets[] = {
30SND_SOC_DAPM_INPUT("AINL"),
31SND_SOC_DAPM_INPUT("AINR"),
32};
33
34static const struct snd_soc_dapm_route wm8782_dapm_routes[] = {
35	{ "Capture", NULL, "AINL" },
36	{ "Capture", NULL, "AINR" },
37};
38
39static struct snd_soc_dai_driver wm8782_dai = {
40	.name = "wm8782",
41	.capture = {
42		.stream_name = "Capture",
43		.channels_min = 2,
44		.channels_max = 2,
45		/* For configurations with FSAMPEN=0 */
46		.rates = SNDRV_PCM_RATE_8000_48000,
47		.formats = SNDRV_PCM_FMTBIT_S16_LE |
48			   SNDRV_PCM_FMTBIT_S20_3LE |
49			   SNDRV_PCM_FMTBIT_S24_LE,
50	},
51};
52
53static struct snd_soc_codec_driver soc_codec_dev_wm8782 = {
54	.dapm_widgets = wm8782_dapm_widgets,
55	.num_dapm_widgets = ARRAY_SIZE(wm8782_dapm_widgets),
56	.dapm_routes = wm8782_dapm_routes,
57	.num_dapm_routes = ARRAY_SIZE(wm8782_dapm_routes),
58};
59
60static int wm8782_probe(struct platform_device *pdev)
61{
62	return snd_soc_register_codec(&pdev->dev,
63			&soc_codec_dev_wm8782, &wm8782_dai, 1);
64}
65
66static int wm8782_remove(struct platform_device *pdev)
67{
68	snd_soc_unregister_codec(&pdev->dev);
69	return 0;
70}
71
72static struct platform_driver wm8782_codec_driver = {
73	.driver = {
74		.name = "wm8782",
75	},
76	.probe = wm8782_probe,
77	.remove = wm8782_remove,
78};
79
80module_platform_driver(wm8782_codec_driver);
81
82MODULE_DESCRIPTION("ASoC WM8782 driver");
83MODULE_AUTHOR("Johannes Stezenbach <js@sig21.net>");
84MODULE_LICENSE("GPL");
85